diff --git a/index.js b/index.js
index b44db10..7f7c9a1 100644
--- a/index.js
+++ b/index.js
@@ -168,7 +168,7 @@ var PiwikTracker = function(opts) {
 
 		if (opts.injectScript) {
 			var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.type='text/javascript'; g.defer=true; g.async=true; g.src=u+opts.clientTrackerName;
-			s.parentNode.insertBefore(g,s);
+      d.getElementsByTagName('body')[0].insertBefore(g,s);
 		}
 	})();